Code Applied by the app plumb.hanger.pvc

Hanger spacing for PVC pipe

How far apart PVC pipe may be supported — 4 feet horizontal, 10 feet vertical.

The rule, as the app applies it
WhenThe app uses
horizontal4 ft
vertical10 ft
Source
IPC · 308.5, Table 308.5 · read the public text
Editions checked
2018 · 2021
Used by
Child counts Bid Check
Amendments

No state or local amendment to this rule is on file. Not on file means the model code as written — check your jurisdiction.

A model code the authority having jurisdiction adopts.

PVC drainage and vent pipe is supported every 4 feet horizontally, whatever the size, and every 10 feet on a stack. That makes hanger count on a waste line one of the easiest derived quantities on a plumbing bid — length divided by four, rounded up per run.

What the app does with it

A line type whose name says PVC, ABS or DWV is offered Hanger · 1 per 4 ft under Child counts, stamped with this rule; Bid Check's Hangers on every supported run row warns while such a type has none. CPVC is a different row of the table and is not matched. The count runs on the run's tally length, drops included.

Cited by section, not reprinted: the code text belongs to its publisher. Company practice is not a rule here — it lives with your pricing. Updated Sep 9, 2026.